As I understand it, you're only allowed to shoot to eliminate the threat. If the attacker stops because he's wounded but alive, you cannot just walk up and finish him off. The threat is already gone.
She would have been in serious legal trouble, if she that.
Possibly. But what state's attorney would refer and what jury would convict in these circumstances?
Uh, yeah (choking sound in background) - yeah, "finishing shots" aren't a part of your usual tactical scenario. This ain't the movies.
I've had to give some serious thought this last week into my own capabilities in this regard. I've been getting by with a little 9mm in normal carry because it isn't any more cumbersome than a cellphone. In the scenarios in the Oklahoma mall or the Colorado church I'd have found myself at the outside edge of effective range with precisely six shots before a reload. If the opponent has body armor and an assault rifle that might be considered slightly under an optimal situation.
These things are good to review now and then. Encountered a hunter while Christmas shopping last week who was sporting a largish revolver in a shoulder rig on the outside of his jacket. That might have been a little more like it. No one turned a hair, but then it was that kind of a store. Might be a bit much for church wear...or maybe not...
Most LEOs are taught to reassess the threat only when changing their magazines.